Surge-reliever



(No Model.)

W. C', FULLER.

SURGE RELIEVBR.

` Patented 11e-m7, 1883.

N. PETERS. Piwwmhomphu. wamingwn. D. C.

UNITeo STATES .ATENT WARREN C. FULLER, OF YARMOUTH, MASSACHUSETTS.

SU RG EQREVLI EVER.

SPECIFICATION forming part of Letters Patent No. 272,874, dated February v2'?, 1883.

Application eiedaugnst 21, 1882. (No model.)

To all whom it may concern:

Beit known that I,- WARREN C. FULLER, of Yarmouth,l State of Massachusetts, have invented an Improved Surgeleliever, of which the following is a specification.

This invention relates to elastic yielding relievers to which cables and hawsers are attached, in order that such elasticity may materially lessen the strain resulting from the force of the surges to which the vessel or other bo'dy is subjected which is anchored or held by such cables or hawsers; and theinvention consists in the construction and combination of the various devices embodied therein, as hereinafter more particularly and fully set forth and claimed.

In the accompanying drawings, Figure 1 is a side elevation ofmyimproved reliever, shown as secured to a vessels deck, and also showing, partly by dotted lines, an anchoring-chain attached to the reliever. Fig. 2 is a top or plan view of the reliever,as shown in Fig. 1. Fig. 3 is a detached sectional elevation, showing the upper portions of two of the elastic columns in elevation, the telescoping tubes and cap in section, and the upper portion of two of the holding-rods in elevation and as secured in the inner tube. Fig. 4 is atransverse section taken through the buffers and their guide-rods and through the anchoring-rods, as iu linez z, Fig. l. Fig. 5 is a longitudinal section of one oi the buffers, and showing the abutting plates and cap and follower of the frame, also in section, and the guide-rod in elevation. Fig.6 is a top or plan view of the supporting-frame, and showing the hooks of the anchoring-rods and the guide-rods.

In said views, c a represent the side pieces of the frame, in which I secure the buti'ers. A cap, b, and base d are secured upon the respective ends of c a. by the buffer guide-rods e, as shown. The butter-columns B, ot' which four are preferably employed, are composed ofthe hollow cylindrical elastic sectionsf, of rubber, separated by the circular supporting flanged disks g. The buffers, thus composed, are arranged upon and guided by rods e, between head b and followerc, which latter slides freely on said rods, both said cap and follower being either recessed or provided with lianges to receive and support the abutting` section g, as

which there :ire tour) are each formed at the up-l per end with a hook, y, and diverge as they extend downward and pass through followerc,tov which they are secured by screw-nuts, as shown in Fig. 1. Ashort but strong tube, fv, is rinly secured in cap b, and a larger and closely-tit ting tube, t,is arranged to slide telescopically in tube c. The rods at' are placed in position in tube t, as shown in Figs.2, 3, 6, when melted lead or other suitable metalis poured therein, filling ail the spaces inside said tube, after which, if necessary, the lead or other material may be closely calked or tamped to render said tube Water-tight. Oaprb is bolted to plate It by bolts t', as shown in Fig. 1, and said plate his bolted to deck j and deck-beams 7c by bolts l. Upon plate h is rigidlysecnred, by bolts t', the sheavec-ase, formed with a bedn, and the side cheeks, m m, in which latter are secured the pins s s, on which sheaves or rollers p p rotate. The cable-chain, hawser, or other means of anchorage is secured to each ofthe hooks y, as shown at A, Fig. 2. Any desired number of the buffer-columns B may be employed; but I prefer four, as stated.

By employing a plurality of anchoring-rods, x, the plane ot' follower c is always held parallel with cap b and atright angles to the axis of columns B; besides which, the danger resulting from defects in said rods is decreased, as they are intended to be of such size and strength that either two shall be equal to the strength of the anchoring-chain; and hence, if one or two of said rods should fail from any defect, the others are equal to the chain in strength.

By means of the fixed tube c and sliding tube t, with rods x packed therein, as described and shown at z, and with bed h closely fitted to deck j, water cannot pass below the deck, tube t being of such length that itslower end will still be in tube c when the ultimate strain is exerted upon columns B. If desired, the sides t a may be secured directly to bed h, in which case rods e would pass through said bed.

By means of sheaves p the reliever can be placed in a vertical position below the deck,

ICO

onse of its being used to tow another craft, and the strain upon rods a is always in the line of the axis of tube t.

I am aware that a variety of elastic surge and other relievers have been invented and patented, and hence I do not broadly claim a reliever adapted to be connected with a hawser or cha-in, my invention being conned to the specific construction and arrangement embraced in the claims.

I claim as my invention- 1. The combination of elastic columns B, mounted upon guide-rods e, follower @,mounted upon said rods and arranged to compress said columns, and anchoring-rods x, converged at Y. hooks y and diverged at followers c, and seand anchoring-rods ai, secured in said follower and converged at the opposite end, the rolls p. mounted in supporting-case m m and arranged on opposite sides of hooks y of said rods to receive the chain A attached to said hooks,sub stantially as specified.

4. The combination'of side supports, a a, cap b, and head d, properly secured together by guide-rods c, said rods and elastic columns B thereon mounted, follower c, arranged to act againstsaid columns,anchoring-rods, secured to said follower and passing through cap b, and rolls 1J, arranged in their supporting-case on either side of hooks y of rods fr, all substantially as specified.

5. In asurge-reliever, a deck plate or bed,Y

a frame to support the elastic buffers arranged below such bed,elastic columns or buffers supported by such frame, a follower to act on or e 

